I ask because I was admiring my 2 pound bag of caffeine, like holy shit this is a ton of caffeine, when I sneezed and now things are pretty fuckin crazy haha. So can your body take in caffeine through your eyes, or is this just some placebo shit? Or maybe it got in my nose or something, dunno. There was caffeine everywhere

Yeah, since it's not a pro-drug, any way into your bloodstream is a valid method of dosing. Not that it's something you should want to do. I wouldn't worry too much though because the oral bioavailability of caffeine is 99% (according to wikipedia) and a cup of coffee has ~115-150 mg. So even if you somehow snorted and or absorbed some caffeine through the eye, I'd be impressed if you went over a few milligrams. Still, it might be worth monitoring your heart rate.

Caffeine absorbs through any sort of skin contact, no problem absorbing through mucous membrane like eyes.

Pls be safe. Seriously, don't die of a severe caffeine overdose, handle that shit with gloves wherever you're putting it, and make sure it's evenly distributed in any mixtures, or you're gonna have a bad time.

Any quick tips on how to make sure it is evenly distributed? My preferred method is to just turbulate the shit out of the caffeine/everything else mixture. Clump? Better annihilate that. Not just shaking. I stir it up as much as possible, and add racetams, then make sure that even if there is some pattern left in the mixture, to distribute that pattern as evenly as possible among thel gel caps. I have always assumed this works, but if there is something I should know about how to improve my method, it would be a good thing to know.

EDIT: there is no perceivable pattern left, but if there is a pattern I can't see, I still try to make sure that it gets spread among gel caps evenly. Figured I should clear that up. The mixture looks homogeneous to me when I'm finished with it.

this comment made me fist pump like a guido. someone else on this subreddit said that caffeine was completely safe in response to my warning that noobs to noots shouldnt be taking spoonfuls of caffeine. even small amounts can be too much

Most anything you drip into your eye goes down the nasolacrimal duct and ends up in your nasopharynx, from there it just goes down your esophagus. Unless you are applying some medicine topically for some purpose related to your eye, it is basically the same as ingesting it orally, with the added risk of irritation to your peepers.

Caffeine is a polar molecule which is not very water soluble at body temperature, so its absorption across a mucous membrane like the mouth or sinuses is going to be poor.

Yes. Unrelated, but a totally fun fact, you can inject caffeine through your butthole, too - and the effects are rather significantly pronounced if you were taking a shit at the time of injection; exceedingly stimulating, that is.